MSE421 MCLENNAN | Alldatasheet
Document overview
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Technical content
Euroamp 60 dc servo amplifier MSE421 MSE 421 provides a continuous output power rating up to 60 watts with precise servo control of dc servo motors. Operating from a single rail supply which enables battery operation if required, the unit utilises a MOSFET based linear output stage with the following operating advantages:
- Virtually zero electrical emissions
- Improved smoothness of motor operation
- Increased motor life
- Suitable for low inductance motors without the need for an additional choke. Euroamp 60 is packaged on a standard extended Eurocard format using surface mount technology to provide compact overall size and high reliability. The differential amplifier based input stage incorporates control technology based on many years experience in servo system design with the following features:
- adjustable peak output current up to 4 amps
- independently adjustable continuous output current up to 2 amps
- choice of velocity control using armature voltage sensing or tacho feedback
- optional torque control or positional control using analogue positional feedback signal
- plug-in personality header to match the drive to specific motor characteristics
- optional automatic velocity ramp for smooth starts using stepped input signal change
- directionally sensitive end of travel limit signal inputs
- remote enable signal input
- front panel adjustments of servo loop constants for easy commissioning
- front panel diagnostic LED display of drive condition. Euroamp 60 Block Diagram Peak and I2 t limiting stage Speed scaling Command- (pin 10a&c) Command+ (pin 6a&c) Tachometer feedback scaling - RTacho Armature voltage feedback scaling - RArm Tacho+ (pin 9a&c) Linear Current Output Drive Armature voltage feedback link - LKArm Max speed (pot & SW1-3) Zero speed (pot) Ramp (pot) Proportional Integral Derivative (pots, CInt & CDeriv Required Current (pin 3a&c) Motor Current (pin 11a&c) Enable & directional limits (SW1-1,SW1-2, pins 7a&c, 12a & 12c Velocity / Torque - SW1-4 RTConst, RIRatio & RIPeak Ramp generator Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.uk
Euroamp 60 dc servo amplifier MSE421 dimensions mm. Ramp Derivative Prop ortio nal Zer o Speed Max Speed Faul t I2t Limit Power SK1SW1 100 mm 220 mm12E 60 mm specification Euroamp 60 Type number Version with 3U high front panel MSE 421-60 PM 421 - 60 Supply 10 - 30 Vdc (Absolute maximum supply voltage: +32Vdc) Maximum output voltage + 28 Vdc Maximum continuous output current 2 amps Maximum peak current 4 amps motor stall protection / over correct protection I2 T Input proportional control signal + 10 Vdc Control options Velocity Control options using tacho or armature voltage feedback Positional control using analogue feedback signal Torque control motor torque proportional to + 10 V signal Front panel adjustments Proportional gain speed scaling derivative feedback zero offset motor acceleration Front panel diagnostics power on indicator I 2 T indicator fault indicator Personality header functions Tacho feedback scaling Armature feedback link tuning of integration circuit derivative circuit scaling Armature feedback scaling Time constant scaling Peak current scaling peak / continuous current ratio external signals reference supplies outputs + 10 Vdc & - 10 Vdc output @ 3 mA proportional command signal inputs + 10 V torque control command signal input + 10 V enable ( when selected internally ) input + 10 V - 30 Vdc signal Tacho feedback signal input + voltage signal internally scaled on header Motor current output monitors motor torque + Direction overtravel limit input inhibits drive in positive direction - Direction overtravel limit input inhibits drive in negative direction Drive healthy output indicates over current or over temperature or I2 T limiting Connections Recommended motherboard for fitment to 19 in. rack systems : MSB520 Recommended motherboard for mounting on cabinet back panel : 2MH Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.uk